FNUS73 KMPX 051756 FWSMPX SPOT FORECAST FOR PRAIRIE ISLAND BURN UNIT 6...BIA NATIONAL WEATHER SERVICE TWIN CITIES/CHANHASSEN MN 1156 AM CST THU NOV 5 2009 FORECAST IS BASED ON IGNITION TIME OF 1210 CST ON NOVEMBER 05. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... RIDGE OF HIGH PRESSURE SITS ACROSS EASTERN MINNESOTA...RESULTING IN CLEAR SKIES AND LIGHT WINDS. THIS RIDGE AXIS WILL CONTINUE TO SLIDE EAST...WITH LIGHT SOUTH WINDS GRADUALLY BECOMING LIGHT SOUTHEAST. AS THE AFTERNOON CONTINUES...SOUTHEAST WINDS WILL SLOWLY PICK UP AND WILL CONTINUE TO INCREASE IN STRENGTH THROUGH THE LATE AFTERNOON AND OVERNIGHT. THE CLEAR SKIES WILL ALLOW HIGH TEMPERATURES TO TOP OUT NEAR THE LOWER TO MIDDLE 50S...WITH AFTERNOON HUMIDITIES BOTTOMING OUT IN THE LOWER TO MID 40S. .TODAY... SKY/WEATHER.........SUNNY. TEMPERATURE.........48 AT IGNITION...MAX 53. RH..................59 PERCENT AT IGNITION...MIN 43 PERCENT. WIND (20 FT)........WINDS SOUTH AT 5 MPH AT IGNITION...THEN BECOMING SOUTHEAST 5 TO 8 MPH IN THE AFTERNOON. HAINES INDEX........3 OR VERY LOW AT IGNITION...MAX 4. SMOKE DISPERSAL.....POOR TO FAIR (1300-22000). MIXING HEIGHT.......300-2100 FT AGL INCREASING TO 1600-3500 FT AGL IN THE AFTERNOON...THEN DECREASING TO 600 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........SOUTH 3 TO 12 MPH INCREASING TO SOUTHEAST 16 TO 20 MPH LATE IN THE AFTERNOON. TIME (CST) 10 AM NOON 2 PM 4 PM 6 PM 8 PM SKY (%).........CLEAR CLEAR MCLEAR MCLEAR MCLEAR MCLEAR WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............42 46 52 51 47 45 RH..............73 59 44 48 56 62 20 FT WIND......W 3 S 4 SE 5 SE 6 SE 7 SE 8 20 FT WIND GUST.5 5 6 10 10 15 HAINES INDEX....3 3 3 3 4 3 $$ FORECASTER...KRAUSE REQUESTED BY...MARTY CASSELLIUS TYPE OF REQUEST...PRESCRIBED .TAG 20091105.PRAIR.02/MPX